Allow a Views client to provide a default frameview for window widgets.

chrome/browser/ui/views/bookmarks/bookmark_bar_view_test.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 82 matching lines @@
       views::View* view, ui::AccessibilityTypes::Event event_type) OVERRIDE {}
   virtual void NotifyMenuItemFocused(const string16& menu_name,
                                      const string16& menu_item_name,
                                      int item_index,
                                      int item_count,
                                      bool has_submenu) OVERRIDE {}
 
 #if defined(OS_WIN)
   virtual HICON GetDefaultWindowIcon() const OVERRIDE { return 0; }
 #endif
+  virtual views::NonClientFrameView* CreateDefaultNonClientFrameView(
+      views::Widget* widget) OVERRIDE {
+    return NULL;
+  }
 
   virtual void AddRef() OVERRIDE {
   }
 
   virtual void ReleaseRef() OVERRIDE {
     MessageLoopForUI::current()->Quit();
   }
 
   virtual int GetDispositionForEvent(int event_flags) OVERRIDE {
     return 0;
@@ skipping 1455 matching lines @@
     ASSERT_TRUE(menu != NULL);
     ASSERT_TRUE(menu->GetSubmenu()->IsShowing());
 
     menu->GetMenuController()->CancelAll();
 
     Done();
   }
 };
 
 VIEW_TEST(BookmarkBarViewTest19, SiblingMenu)